*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #2f363e;
}
.box{
    position: relative;
    width: 450px;
    height: 550px;
    border-radius: 30px;
    background: #2f353e;
    padding: 30px 50px;
    box-shadow: 25px 25px 75px rgba(0,0,0,0.25),
    10px 10px 70px rgba(0,0,0,0.25),
    inset 5px 5px 10px rgba(0,0,0,0.5),
    inset 5px 5px 20px rgba(255,255,255,0.2),
    inset -5px -5px 15px rgba(0,0,0,0.75);
}
h2{
    width: 100%;
    font-weight: 600;
    text-align: center;
    color: #fff;
    font-size: 1.75em;
    margin-bottom: 10px;
}
#inputBox{
    position: relative;
    width: 100%;
    border: none;
    outline: none;
    padding: 15px 20px;
    border-radius: 30px;
    font-size: 1em;
    box-shadow: 5px 5px 7px rgba(0,0,0,0.25),inset 2px 2px 5px rgba(0,0,0,0.5), inset -3px -3px 5px rgba(0,0,0,0.5);
}
.box li{
    position: relative;
    width: calc(100% - 40px);
    display: flex;
    align-items: center;
    background: #1f83f2;
    margin: 15px 0;
    padding: 10px 10px 10px 45px;
    min-height: 45px;
    cursor: pointer;
    border-radius: 22.5px;
    color: #fff;
    box-shadow: 5px 5px 7px rgba(0,0,0,0.25),inset 2px 2px 5px rgba(0,0,0,0.5), inset -3px -3px 5px rgba(0,0,0,0.5);
}

.box li i{
    position: absolute;
    right: -40px;
    width: 30px;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ff2cf4;
    border-radius: 50%;
    box-shadow: 5px 5px 7px rgba(0,0,0,0.25),inset 2px 2px 5px rgba(255,255,255,0.5), inset -3px -3px 5px rgba(0,0,0,0.5);
}
.box li i::before{
    content: '';
    position: absolute;
    width: 15px;
    height: 2px;
    background: #fff;
    transform: rotate(45deg);
}
.box li i::after{
    content: '';
    position: absolute;
    width: 15px;
    height: 2px;
    background: #fff;
    transform: rotate(-45deg);
}
.box li::before{
    content: '';
    position: absolute;
    left: 8px;
    width: 30px;
    height: 30px;
    background: #2f363e;
    border-radius: 50%;
}
.box li.done{
    background: #f07d8b;
}
.box li.done::after{
    content: '';
    position: absolute;
    left: 16px;
    width: 12px;
    height: 6px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(315deg);
}
#list{
    position: relative;
    margin-top: 20px;
    height: 350px;
    overflow-y: auto;
    padding-right: 10px;
}
::-webkit-scrollbar-track{
    box-shadow: inset 0 0 5px rgba(0,0,0,0.5);
}
::-webkit-scrollbar{
    width: 5px;
}
::-webkit-slider-thumb{
    background: #fff;
}